BlitzHome CM-301CG: Espresso Machine with Grinder and PID Control

The BlitzHome CM-301CG is a portafilter espresso machine with a built-in conical grinder offering 20 grind settings. It features PID temperature control with an NTC sensor, a touchscreen and a manual steam wand for frothing milk.

Grinder with 20 settings

The integrated conical grinder grinds beans in the machine, so there is no need for a separate grinder. Grinding coffee fresh helps preserve its aroma, while combining both appliances in one unit saves counter space.

There are 20 grind settings to choose from. They are useful when changing beans or fine-tuning the taste: grind size affects how quickly water flows through the coffee and, in turn, how it extracts. If an espresso flows too quickly or too slowly, adjusting the grind is one way to change the result.

PID control and touchscreen

The machine uses PID temperature control alongside an NTC sensor. The sensor provides temperature readings, which the controller uses to adjust heating. The aim is to limit temperature fluctuations during brewing, since water temperature affects extraction and the resulting flavor.

The touchscreen displays grind time, extraction time and brewing temperature. Watching the extraction time can help when dialing in a coffee: users can see how the extraction changes after adjusting the grind. These readings also make it easier to repeat a method that produced a good result with a particular coffee.

Pressure, power and portafilter

The manufacturer states a pump pressure of 20 bar, while extraction pressure is around 9 bar. These are different figures: the stated pump pressure should not be confused with the pressure at which water passes through the coffee. Around 9 bar is suitable for espresso extraction.

The machine has a power rating of 1150 W. It comes with a 51 mm portafilter and single- and double-shot baskets. The diameter is also useful when choosing accessories, which need to match the basket size.

Milk drinks and accessories

The manual steam wand froths milk for drinks such as cappuccinos and lattes. The machine also dispenses hot water for tea and other hot drinks. Alongside the portafilter and two baskets, the package includes a tamper, a milk pitcher and a drip tray grid.

The stainless-steel body is complemented by touchscreen controls. By combining grinding, espresso preparation and milk frothing in one machine, the BlitzHome CM-301CG is suited to home users who want to keep track of grind settings, temperature and extraction time.